Home / 16,720.90-23,077.78-12,701.04

Finding the Fourth Proportional to 16,720.90, 23,077.78 and 12,701.04

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Solution

The fourth proportional to 16,720.90, 23,077.78 and 12,701.04 is: 17,529.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.90 : 23,077.78 = 12,701.04 : x
  2. Step 2: Convert to fraction form
    16,720.90/23,077.78 = 12,701.04/x
  3. Step 3: Cross multiply
    16,720.90x = 23,077.78 × 12,701.04
  4. Step 4: Simplify right side
    16,720.90x = 293,111,688.60
  5. Step 5: Solve for x
    x = 293,111,688.60/16,720.90
  6. Step 6: Final answer
    x = 17,529.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.